Wrench drive wingnut



FIG. 1 is a top plan of a wing nut embodying the ornamental design of this invention;

FIG. 2 is a left end elevation thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a right end elevation thereof; and,

FIG. 6 is a bottom plan thereof. 

The ornamental design for a “wrench drive wingnut”, as shown and described. 